“Belfast you get it – not many people understand, but Belfast does.” To be very honest, it’s very easy to be apprehensive about a Green Day gig in 2017. After the messy 2012 Uno… Dos… Tres! trilogy of albums, expectations weren’t too high for their 12th studio album, Revolution Radio, released last October. But the album was a pleasant – though somewhat basic – effort from the iconic punk trio, revealing a sense of maturity, if not some dubious album artwork. It’s easy to be apprehensive to see artists ‘after’ their moment in the sun (or the burning ball in…